Ever wondered if that metallic brown crystal is goethite or hematite? You can find out in 15 seconds using simple home tests — hardness, streak, or acid reaction. Even experienced collectors forget the basics sometimes. 🧪💎
👉 Have you tried identifying minerals this way? Tell us how it went! #MineralCollecting #RockHounds #GeologyBasics #MineralTesting #CollectorsCorner Image Credits - CC KarlaPanchuk